Elmer e



length of the slots and the pin 34 is correspond ingly adjusted, thus varying the lost motion or interval of movement of the carriage before the applicator drum begins'to turn.

Having accurately fixed this degree of lost motion, it is necessary that the drums have the correct initial or starting point. That is primarily the function of the heart cams and spring pressed detents, but additionally a spring stop is provided to engage the carriage on its return movement and in case of overrun to bring it back to the right position. As shown, this is a rod I43 (Figs. 9 and 10) which slides in bearings in a U-bracket I44 and is urged forward by a spring I45. This stop mechanism is so disposed that its abutting end just engages the rear edge of lower plate l when the detents are in the low places of the heart cams. Consequently if the carriage slightly overruns on its return movement, this positioning member I43 will bring it back to the right position. In fact, as will presently be explained. a slight overrun is necessary in order to allow the fingers H9 and I20 to escape from underneath the edge of the runningweb and spring up so as to be on top of the web when the spring I45 returns the carriage to its initial position. Then when another end of new web is led in to the splicer, it will be on top of the fingers and the fingers will thus space the two webs.

In order that the air supply line 44 may be protected and controlled during the reciprocations of the carriage, a trough-like container I46 is provided for this lead-in length 44, being supported on the lower cross frame member 63 and a bracket attached to the base member 18, as shown in Fig. '7.

l The web runs through the splicer at substantially the angle indicated in Fig. '7, being guided by at least one lateral guide l4! which may be adjustable for difierent widths of web.

The splicer starts from the condition shown in Fig. 9, in which the vacant portions of the applicator rolls are facing the plane or the webs on opposite sides and the fingers H9 and H0 are entered slightly between the old web which is on the bottom and the new web which is on the top.

As the lever l is thrown to the right,the cutters move together and the clamps close, the loop having previously been formed, and the speed of the presses having been reduced to about onequarter speed. Immediately air enters the main air cylinder H and the splicing traverse of the carriage begins. The cutters enter in from the edge of the webs between the fingers, and the fingers, which are curved so as to be in effect leading extensions of the plows, begin to turn up the new web from the severed line, as shown in Fig. 13, and to turn down the trailing end of the old web, away from the line of sever. The plows follow and continue the separation of the scrap ends so as to expose the edges to be spliced.

The shoes then come and bring these edges into line, and the applicator rolls follow and apply the tape.

It is necessary, as stated,- that the applicator rolls turn just enough by the time the vertical plane of their axes gets to the web edge, to bring the leading end of the tape into that plane. Preferably the laying of the tape starts slightly inside the near edge and terminates just insid the opposite edge. The starting point is determined by the setting of the lost motion or angular space 14 between the drive pinin the sprocket and doe on the heart cam. 4

The progress through the splicer is illustrated in Fig. 11 where the rolls are shown half way through and the lower scrap is shown being turned down and the rolls have applied the tape I28 on opposite sides of the web joint up to their point of progress, the shoes preceding the rolls and bringing the web edges into abutment. Ahead of the cutters, the two webs are shown with a finger between, the old web being on the bottom.

Fig. 23 illustrates the condition at the end of the splicing traverse. The drive pin 33 has been driving the dog 34 and hence the applicator roll in the direction indicated by the full line arrow. When the lever l is thrown to left to admit air to the right end of cylinder H, travel of the carriage starts in the opposite or return direction. This means that the drive pin 33 is turned in the direction indicated by the dotted line arrow, and it will be seen that the pin moving'in this direction will pass the spring engaged end of the dog and will not strike the dog until it passes the pivot. A continued movement causes the dog to yield against the pull of the spring [31' and the pin passes without turning the heart cam and applicator roll. Hence the rolls are not rotated on the return movement of the carriage. They are given one complete turn on the splicing traverse, and for that reason a given pair of rolls will serve only for one width of web, it being necessary to use different size rolls for different widths of webs. As above pointed out, therelease of the clamps and of the cutters occurs at the completion of the splicing traverse of the carriage, leaving the web free to resume its movement and causing the-cutters to clear the web on the return traverse. 1 r

While a particular embodiment of the invention has been illustrated and described in detail, it will be understood that this construction is merely illustrative and that the precise mechanical construction may be modified in many respects without departing from the spirit and scope of the invention as defined in the following claims. I I

What isclaimed is: if

1. Means for butt splicing a new web of paperboard to a progressing web approaching exhaustion comprising a pair of normally open clamps operative to clamp the leading end of the new web in face contact with the. other web and hold the clamped portions of the two webs stationary 1n fixed relation, power means for closing the clamps, a carriage movable transversely of the webs between the clamps, power means for propelling the carriage across the webs, a cooperative pair of rotative cutters on the carriage positioned to engage the webs-between them in shearing relation, scrap removal means on the carriage positioned to engage and remove the end portions of the webs severed by the cutters, shoes on the carriage positioned to bring the remaining ends of the webs into abut ing relation, a pair of applicator rolls on the carriage positioned to roll longitudinally over the joint so formed on opposite sides of the webs and eachoperative to apply adhesive tape over the joint on itsv side of the spliced webs, means actuated by the propelling means for rotating the rollsand the cutters, and means controlled by the first men; tioned power means for effectuating the second mentioned power means.

2. Means for butt splicing a new web of paperboard to a progressing web approaching exhaustion comprising a pair of normally open clamps operative to clamp the leading end of the new web in face contact with the other web and hold the clamped portions of the two webs stationary in fixed relation, power means for closing the clamps, a carriage movable transversely ofthe webs between the clamps, power means for propelling the carriage across the webs, a cooperative pair of rotative cutters on the carriage positioned to engage the webs between them in shearing relation, scrap removal means on the carriage positioned to engage and remove the end portions of the webs severed by the cutters, shoes on the carriage positioned to bring the remaining ends-of the webs into abutting relation, a pair of applicator rolls on the carriage positioned to roll longitudinally over the joint so formed on opposite sides of the webs and each operative to apply adhesive tape over the joint on its side of the spliced webs, a fixed rack, a gear on the carriage engaging the rack, means actuated by the gearfor rotating the rolls and the cutter, and means controlled by the first mentioned power means for efiectuating the second mentioned power means.

3. Means for butt splicing a new web of paperboard to a progressing web approaching exhaustion comprising a pair of normally open clamps operative to clamp the leading end of the new web in face contact with the other web and hold the clamped portions of the two webs stationary in fixed relation, power means for closing the clamps, a carriage movable transversely of the webs between the clamps and having two spaced plates disposed to move on opposite sides of the web, power means for propelling the car-- ria ge across the webs, a pair of cooperative rotative cutters on the top and bottom of the plates, respectively, and positioned to engage the webs between them in shearing relation, scrap removal means on 'each plate positioned to engage and remove the end portions of the webs severed by the cutters, cooperative shoes on the plates positioned to bring the remaining ends of the webs into abutting relation, a pair of applicator rolls mounted on the underside of the top plate and the upper side of the bottom plate, respectively,

in opposing relation and cooperative to apply ad- 4 hesive tape over the joint on both'sides of the spliced webs, a fixed rack adjacent and parallel to the path of each plate, a gear on each plate engaging the corresponding rack, means actuated by each gear for rotating the roll and cutter on its plate, and means controlled by the first mentioned power means for eifectuating the second mentioned power means.

4. A butt splicer as defined in claim 3 in which the gear actuated means for rotating the rolls includes a driving and driven member one of which has a pin and the other of which has a pivoted "abutment member yieldably biased with one end in the path of the pin and the other end out of the path of the pin.

5. A butt splicer as defined in claim 4 in which one of the driving and driven members is angularly adjustable relative to the other.

6. A butt splicer as defined in claim 3 in which the cutters are retractible and there are retractile means normally retracting the cutters toward their respective plates out of overlapping relation and there are power means operable to overcome the retractile means and cause the cutters to approach and overlap in the plane of the webs.

7. Abutt splicer as defined in claim 6 in which one of the cutters is axially adjustable and in which means controlled by the power means move the said one cutter axially toward and into shearing relation with the other cutter during the approaching movement and axially away from the other cutter during the retractile movement.

8. A butt splicer as defined in claim '7 in which spring means bias the said means controlled by the power means to move the adjustable cutter axially away from the other cutter and in which the power means act in opposition to the spring means to move the adjustable cutter axially toward the other cutter during the approaching movement.

9. A web splicer comprising a frame through which a web travels, a carriage reciprocable across the web path, a pair of rotary knives on opposite sides of the web path and reciprocable toward and from each other, air operated means to cause the knives to approach each other, a main air cylinder, a piston reciprocable in the cylinder, means operatively coupling the piston to the carriage, a source of compressed air, a main control valve for the air, a conduit connecting the said valve with the said air operated means, a second conduit connecting the said valve with one end of the main cylinder, a normally closed valve in the second conduit, and means under the control of the air in the first mentioned conduit for opening the valve in the sec ond conduit.

10. A web splicer comprising a frame through which a web travels, a carriage reciprocable across the web path, a pair of rotary knives on opposite sides of the web path and reciprocable toward and from each other, air operated means to cause the knives to approach each other, a main air cylinder, a piston reciprocable in the cylinder, means operatively coupling the piston to the carriage, a source of compressed air, a main control valve for the air, a conduit connecting the said valve with the said air operated means, a second conduit connecting the said valve with one end of the main cylinder, a normally closed valve in the second conduit, air operated clamps for a web in the frame, a branch conduit connecting the first mentioned conduit with the clamp operating means andincluding a second branch leading to the normally closed valve, a second normally closed valve in the said second branch conduit, and means operated by the clamps for opening the second normally closed valve.

11. A web splicer as defined in claim l0 in which both the knives and the clamps are mounted on reciprocating pistons in air cylinders and the first mentioned conduit communicates with the air cylinders for the knives and the branch conduit communicates with the air cylinders for the clamps and springs are arranged to oppose the movement of the pistons carrying the knives and clamps under the force of the air pressure.

12. A web splicer as defined in claim 10 in which there is a third conduit connecting the said valve with the other end of the main cylinder, and the valve is a three-way valve, in one position shutting off the air supply and in another position connecting the air supply to the first conduit and venting the third conduit to exhaust and in another position connecting the air supply to the third conduit while venting the first conduit to exhaust. 1

13. A web splicer as defined in claim 10 in which there are speed control valves in certain of the conduits to regulate the sequential times Number of operatlon. 371,315 ELMER E. GARRETT. 1 217 25.2 ALOIS ESSEX. 5 1 2172 3 WILLIAM G. HAMPTON. 112201556 2,273,464 REFERENCES CITED 2,295,542 The following references are of record in the 2,313,035

file of this patent: 10 2,367,725

UNITED STATES PATENTS Name Date Hawley Oct. 11, 1887 Williamson Feb. 27, 1917 Williamson Feb. 27, 1917 Reisbach Mar. 27, 1917 Campbell et a1 Feb. 17, 1942 Breth Sept. 15, 1942 Breth Mar. 9, 1943 Lindh Jan. 23, 1945 

1. THE METHOD OF APPLYING DECALCOMANIA TRANSFERS TO A WAX SURFACE COMPRISING APPLYING TO THE WAX SURFACE A SOLUTION OF AN ALCOHOL-SOLUBLE COPAL RESIN DISSOLVED IN AN ALIPHATIC OXYGENATED SOLVENT HAVING FROM 1 TO ABOUT 8 CARBON. ATOMS, PERMITTING THE SOLVENT TO EVAPORATE TO FORM A RESINOUS FILM ON SAID WAX SURFACE AND APPYLING THE DECALCOMANIA TRANSFERS ON SAID RESIN FILM.
 12. A DECORATIVE WAX FIGURE CONSISTING ESSENTIALLY OF A WAX BODY, A FILM OF AN ALCOHOL-SOLUBLE COPAL RESIN ON THE SURFACE OF SAID WAX BODY AND A DECALCOMANIA TRANSFER ON SAID COPAL RESIN FILM. 